So I used Handcent for a while and I really liked it, however you can't send MMS using it for whatever reason which is a big deal breaker for me. I uninstalled it and went back to the original messaging application, but now it just closes randomly. Like I'll open it and it will close instantly. Then I open it again and it works fine. Other times it will open fine, but then I'll try to open up an conversation and it closes automatically, then when I open it again everything works fine. It is very annoying. It just closes out to the home screen. I've deleted all my existing messages and I've tried resetting my phone, nothing seems to help.